Brush-making machinery.



W. G. UEBEG,

I BRUSH mama 'MACHINESY. a APPLICATION HLED 001.31. 1913. x F, 5 Lifiifi v latented My. 20, 1915.

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W. G. LIEBIG.

BRUSH MAKING MACHINERY.

I APPLICATION FILED (ICII 3!; $913. w I TI. I W Pmnm NW. 225 I915 sugeTs-snasr 3:

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. fiMW-M ATTORNE V.

w. GJUE BIG. BRUSH MAKING MACHINERY. APPLIVCATION HLED 0C1T-31. m.

Patentefl Nov. 23, 1915.

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[WITNESSES uir o san .nnrta? enrich...

wILLrnM GQLIEBIG, or DETROIT, MICHIGAN.

BRUSH-MAKING MACHINERY.

S Application filed October 31, 1913. Serial No. 798,420.

ToaZZ whom it may concern:

Be it known that I, WILLIAM G. LIEBIG, who am acitizen of the United States, residing at Detroit, count-y of Wayne, State of Michigan, have invented a certain new and useful Improvement in Brush-Making Machinery, and declare the following to be a full, clear, and exact description of the same,

such aswvill enable-others skilled in the art tuft of bristles is sunk into the brush back by the descending movement of the staple forming and tuft setting needle, uniformity in the work will be secured.

The tuftsetting and. needle-forming mechanism is described and illustrated only to such an extent as is necessary to'disclose the complete structure and operation of the machine, the details of this feature being reserved as the subject of another application.

' In the drawings:'-Figure 1 is a front elevation of the machine. Fig. 2 is a side elevation. Fig. 3 is a perspective of the upper part of the machine, particularly the actuating shaft and cam, and the tuft locator, as wellas the tuft and staple-handling parts. Fig. 4. is a plan View of the lever mechanism which supports and adjusts the height of the blank rest. Fig. 5 is aside elevation, partly in section, showing the cup member and its contained eccentrics, by which'the ,stem which supports the brush hack rest is held firmly locked during the desired pottion of each operation of the machine. Fig:

.6 is a plan view, partly in section, of the parts shown in Fig. 5. Fig, 7 is a plan view from above, of the complementary semi-circular clamping blocks which engage about the stem of the brush support, disassociated from the adjacent parts. Fig. 8 is anelevational view of these blocks, with the-relative position of the stem which they are to clamp and thereby support shown-in dotted lines. Fig. 9 is a planiview, similar to Fig.- 7, of the actuating wedge pieces for actuat- Specification of Letters Patent.

racemes Now/. 23, i915,

ing the semi-circular clamping blocks s'hown in Fig. 7. Fig. 10 is. an elevational view of the actuating cam pieces shown in Fig.--

9, similar to the elevational' showing of the clamping blocks in Fig. 8. R

I '12 .re'presents'the supporting table of the device, from which rises an overreaching bracket 13, in whose top portion is journailed the power shaft lt, which receives its actuation from a'be'lt 1.5, or other suitable powertransmitting member, through the ,medium of the clutch 16. The actuating track cam 18 may be thrown into and out of operative engagement with thefly wheel 17, this being regulatable by means of the bellcrank lever 19, actuating links 20 and 21, and the pivoted treadle 22; the bell-crank lever 19 is pivotally supported from a projecting bracket 23 on the main bracket 13.

Pivotally supported near the top of the bracket 13 is a lever 24, the forward end of col which is preferably provided with a roller 25, which engages in one of the tracks 26 of the cam member 18. This track, it will be noted, is by'no means truly circular, but as to about one half of its length is bent inward from the circular line which would correspond, as regards its distance from the central axis, with the path of the remaining one half of the track, and in this portion of the track are certain waves or irregularities 26, 26 and 26, which, when reached by the roller 25, are adapted to impart a faltering movement to the lever 2% and its connected parts, While also sharply depressing its forward, roller-carrying end; to the opposite end of the lever 24 from that whereon the roller 25 is carried is pivoted the upper end of the link 27, which is raised by thismovement just described, and whose lower end is similarly connected to one end of aknuckled lever 28, which is fixed about a shaft 29, from the opposite end of which (see particularly Fig. 4:) rises the lever 'arm 30'fwhich is pivotally connected to one end of the link31,wh0sefunction in actuating and clamping certain of the parts will be hereinafter described.

Engaging through the table 12 and the strut 32 which rises from the forward portion thereof is the supporting stem 33 of the blank support 34, on-which the brush backs are rested in position to receive the tufts of the bristles from the overhanging tuft-delivery member ,Pivotally, att tached to the lower end of the stem 33 is the eal, as viewed from above,

' the lever yoke 36 at one end of the lever 37; this engages, though not rigidly, about the shaft 29, and is normally held in raised position,

which is fixed on the shaft 29, and the other end engaging under the lever 37 to raise it and consequently the stem 33; the rear end of this lever 37 extends beyond the shaft 29,

and is formed to overhang the lever 28, so that its adjusting screw 39 may be changed in position to engage the upper surface of 28 at an earlier or later period in its upward movement, as conditions may require.

The extreme forward projection of the strut is bored vertically, so as to slidably receive the stem 41 of the the raised or lowered position of the stem ll being regulatable through the medium of the clamp .43. From a slightly rearward portion 'of' this strut projects a branch bracket 44, resting in which is a screw or pin 45? which supports the cupped member 45, whose vertical central axis as thus positioned is bored to permit the sliding engagement therethrough of the stem 33. Within the walls of this cup are located a pair of eccentrics or cam segments 16 particularly Figs. 9 and lo) which are similarly rounded at top and bottom to permit the engagement between them of the stem 33, the bore, however, being slightly elliptifor a purpose which will be shortly explained. These wedge members are rendered non-rotatable with respect to the cupped member 45 by the engagement of their projecting lugs 46 and 4:7 in recesses or holes bored in the interior surface of the side walls of the cupped member 45. Next within these cam segments are'located a pair of complementary stemengaging segments 48 and 49; as shown in Figs. 5 and 7 these are similarly rounded or grooved along their straight edges to permit the engagement tl'ierebetween of'the stem 33.

It being highly import-ant that the brush back rested upon the support 34 shall'be so accurately positioned that the tuft of bristles to be set by the vertically reciprocating tuft-. delivery member 35 will be driven cleanly and directly into ea h bored hole in the brush back in turn, there is provided a tuftlocating member 50, which is pivoted at 50 in the upper portion of the overreaching bracket 13, so that its hole-locating point 51 reaches below the member 35, while its upper end, carrying the roller 52, engages another track 53 on the cam member-18. This track, it will be noted, is truly circular except in one place, where the knob or projection 54 isfilocated; when the roller 52 encounters this, -the lower end 51 of the lever arm support 42, i

and 47 (see 50 is thrown sharply upward so as to be out of the way of the tuft-delivery member 35, which immediately begins its donuiward, tuft-setting movement, due to the influence of another track 56 upon its supporting slide 55. During the rest of the downward movement of the slide 55, and during its return movement, the point 51 merely slidably enthe side of the supporting slide 55, and as soon as it has-risen high enough to permit it, engages with its tip 51 just under the tuft-delivery member 35 again. The lower point 51 of the lever 50, being at all times. exceptthe brief actuated period just described, so far below the usual position of the tuft-setting mechanism, engages the top surface of the blank in its position on the support 34, thus locating accurately the exact position of the several holes in the blank with reference to the vertical path of travel ,of the tuft-setting mechanism, and consequently advising the operator whether any shifting of the position of the blank is necessary before the tuft-setting mechanism starts to descend.

The operation of this device, as regards the brush back support is as follows :'lhe cam l8 being started in rotation by pressing upon the treadle 22, the forward end of the lever 24 is depressed through that portion of the rotation of the cam covered by the truly circular portion of the track 26; this results in throwing thestem 33 and its brush backsupport 3-1130 its lowest )osition, so as to permit the easy removal or adjustment of the blank rested thereon, with respect to the tuft-setting mechanism. 'VVhen, however,

the. interior portion 26 of the track is reached, the forward end of the lever 2i is thrown upward, resulting in a depression ofits rear, and, through the medium of the connected link27 and levers 28 and 37, the stem 33 is raised so that the brush back placed upon the top .34 is held exactly at the desired height with regard to the tuft 'setting mechanism; the faltering or irregular movement imparted to the lever 2-l-.by the curves 26 26, and 26 in the track iinparts a very slight though sufiiciently irregular motion to the stem 34 so as to coiiperate with the tuft and staple-setting mechanism in not only driving the tuft and its staple to the extreme bottom of the hole that'has been previously bored in the brush back, but as K well clenches the staple in the wood of the mounted upon the shaft 29 2' this lever 30 is connected through the link 31 with the cup pivot 45 as a 46 and 47. being bers are rotated with them, and consequently, because of their inclined inner surfaces, they influence the position of the semi circular segments 48 and 49.,with respect to the stem When in non-clamping position the cam segments l6 and ii are in such a position with respect to the members 48 and i9, and to the stem 33, that their shoulders 4:6 and 1-7 are nearly in alinement with the stem 33. lVhen. however, they a 9 caused to rotate (to the right, or clockwise in the position shown in 5 it is evi d nt that these inturned cam. surfaces will bear against the adjacent gurved surfaces of the semi-circular segments 48 and ill to force them from their position opposite one another, and truly located with respect to the'cam center, to the raised and lowered positions respectively, as shown in Fig.- 5, and not only are the cam segments raised and lowered respectively, but each segment is forced slightly inward, to an extent suiii cient to change the loose or slidable relationsof their bored or hollowed out straight with respect to the stem to a closely seizing' or clamping position thus obtaining the desired absolute rigidity of the ln'ush-back' support 3% at the moment of impact of the staple against the bottom of the bore in the brush back. The continued tra el at the cam 18 with respect to the roller 25 on the lever 24- then causes the forward end of the lever 24 to descend. again. resulting in depressing the rear end of the lever 28, causing; a backward movement in the lever 30, consequently a retracting movement of the link 31, and thereby releasing the clamping seizure of the segments ust descr bed, which an instant after this releases the stem 33, pa-urmitting the drop of the yoke end 36 of the lever 37 to again lower the stem 33, as already described.

l have illustrated a construction in which, in order to have the power cam as near and as directly connected with the tuft-setting and staple driving: parts as possible, the operative connection near the otto1n of the through the medium of the links and lever members described. It is of course to be uiulerstood, however, as clearly within the scope of my invention to use other and equivalent o 'ierating means, differently arranged if necessary to secure corresponding eiliciency of operation.

What I claim is a l. in a brush making machine, in combination with means for gathering and sets is capable of rote tion to support for a brush thereof with the parts machme has been of bristles, a vertically adjustable A back during the tuft; setting operation, a pivoted lever member with one end of which said support is connected. a pair of clamping bloc s between which said support slidably engages, a second lever nember whereby said clamping blocks are forced against said support to hold it against movement during a certain period in each cycle of operations, and actuating members for bers and their connected parts, for moving each lever in timed relation to the movement of the other lever and of the tuft-handling mechanism. I

In a brush making machine, in combination with a power shaft, a tuft-setting staple-driving mechanism operatively connected therewith, an adjustable support for brush backs, a pivoted lever operativelyconnected with said support and by whose movement it is raised and lowered, a pair of ti ng tufts each of said lever memand clamping blocks with respect to which said support is normally slidable, means for forcing said clamping blocks into locking en gagement with said support, and link and lever mechanism operative'lyconnected with said power shaft and from which said pivoted lever and said block-forcing means derive their ac'tuation in desired'sequence with respect to one another and to the stapledriving mechanism.

3. In a brush making machine, the combination of a frame member, a brush back support capable of. vertical movement with respect thereto, a power shaft, power-transmitting means operatively connected therewith, a pivoted lever deriving its actuation from said power-transmitting means,whereby said support is raised and lowered at desired periods in the cycle of operations, and a pair of clamping blocks also operatively connected with said power-transmitting means, and between which said support normally slides freely, adapted to be forced into locking engagement with said support when. the same has been raised by its lever to the desired elevation, and to be thereafter positively withdrawn from such locking position. substantially as described.

4; In a brush making machine, the combination, with a power shaft, of a plurality of series of power-transmitting members ope atively connected therewith, a. tuft-setting and staple-driving mechanism deriving its actuation from one of said series of power-transmitting members, a vertically movable brush back support, adapted to be raised and lowered in timed relation .to the means, a common said support at each operation of the ma-- chine, means rendered active by the attainment by said support of its desired position -With the respect to the staple-driving mechanism for locking the support in position fora limited period, means for imparting a faltering movement to the support at a certain point in each cycle of operations, and a common power shaft with which the several parts are operatively connected, whereby each is ,actuated to the degree and in the sequence desired.

6. In a brush making machine, the combination of a power. shaft, a plurality of power-transmitting members deriving timed actuation therefrom, a brush back support adapted. to be projected and retracted by certain of said,powentransmitting members in timed relation to the action of the other parts of the machine, a. tuftsetting and staple-driving mechanism actuated by certain other of said power-transmitting members, a tuft-locating member adapted to designfate the point of impact on the brush back bytl ie tuft-setting and stapledrivingmechanism, means for positively locking said sup port against movement at a in each cycle of operations of ithe machine,

and means for thereafter causing a faltering 1 movement thereof with respect to the staple:

driving mechanism.

nation with a tuft-gathering and setting power shaft, a vertically movable brush-back support, means for raising and lowering the same in timed relation to the movement of the tuft-gathering and setting means, meansalso operating in timed relation to said tuft-gathering and setting means, whereby the brush-back support is locked against movement in either direction between its raising-and its lowering at each operation of the machine, and a tuft-locating member normally in the path of'down- 'wardtravel of V the tuft-setting means, adapted to be displaced from such position during the driving movement thereof.

. 8. A brush making machine, having in combination a tuft-setting and staple-driving mechanism, a tuft-lo'ca-ting member, a movable brush back support, a common power-shaft, means actuated by said power shaft whereby the brush back support is projected toward said 1 tuft-setting and staple-driving mechanism to the desired degree before each operation thereof, means certain point .port is raised and 3 powerftransmitting members, I n i -cla mping blocks normally, out-ofengage- 7. In a brush'maklng machine, in combialso deriving actuation from said power shaft for locking the brush back support in position while the tuft is being driven into the brush back, and means for imparting a faltering movement thereto upon the release of said support by said locking means.

9. A brush making machine, having, in combination with a frame, a power-shaft journaled-therein, a tuft-setting and stapledriving mechanism 'opcratively connected with said shaft, a brush support capable of vertical movement 'with respect to said frame, a linkand lever mechanism operatively connected with said power shaft and with said brush support, whereby it israiscd and lowered in timed relation to the move- 'ment of said staple-driving mechanism, a pair of clamping blocks normally out of e gagement with said work support, and deriving actuation from said link and lever mechanism, adapted to be projected into locking engagement about said work support at a certain point in each cycle of operations of the machine, and a tuft-locating member whereby the blank may be properly positioned on the work support with respect to the tuft-setting and staple-driving mechanism;

'10. In combination with a frame, a power shaft journaled therein, a plurality of series of power-transmitting members operatively connected therewith, a work support adjustably supported in saidframe, a pivoted lever member having one end connected with said work support, whereby the suplowered by the movement thereof, the other operatively connected With one of said a pair of merit with said worksupport, meansderiving their actuation from certain of said power transmitting members, whereby said clamping blocks are projected into locking engagement with said work support at a certain period in each cycle of operations of the machine, and a tuft-settingmechanism operatively connected with rce i'tain others' of said power-transmitting members, whereby it is operated in timed relation to the other parts of the machine.

11. In combination With a frame, a Work support adapted tobe raised and lowered a pair of clamping members arranged on opposite sides thereof,

with respect thereto,

and means rendered active by the comple-. tion of the raising and lowering movement of the work support, whereby said clamping members are first forced into clamping engagement therewith, and whereby they are afterward withdrawn therefrom to permit the lowering of the work support.

12. In combination with a frame, a stem member capable of being raised and lowered with respect thereto, means for actuating end of said lever being menace member whereby, in the interval between the raising and lowering movement of said stem, it is locked 1n position, and connecting means between sald locking means and said stem-actuating means for actuating said locking means synchronously with said stem-actuatlng means.

13. In combination witha frame and astem member slidably mounted therein, I

clamping means therefor, comprising a pair of clamping blocks adapted to be forced thereagainst, a pair of actuating segments m'ovided with cam faces to engage theperipheral portions of said clamping block's, an inclosing casing therefor, means for retating said casing and thereby forcing the clamping blocks against and away from said slidable stem member, and means operating synchronously with said last mentioned means whereby said stem member is raised and lowered between successive clamping movements of said blocks.

14. The combination, with an adjustable work support, and means for alternately raising and lowering the same, of a pair of clamping blocks adapted to engage opposing sides of said work support during the period of time elapsing between the completion of the raising movement and the beginning of the lowering movement, said clamping blocks being adapted to be actuated against said work support upon the attainment of such positions in the cycle of operations of the device by the means for actuating said work support, substantially as described.

15. In combination with a supporting frame, a power shaft, a work, support capable of limited movement with respect to the frame, a pivoted lever operatively connected with said power shaft for raising and lowering said. work support in timed relation to the movements of the other parts of the-machine, and clamping members deriving timed actuation from the same source as said pivoted lever, whereby the work support is locked against movement at a certain point in each cycle of operations of the machine. 16. In comb-inationwith a power snafa'a pivoted lever operatively connected therewith, a second pivoted lever operatively con nected with said first mentioned lever, a work support adapted to be raised and lowered by the movement of a second pivoted lever, a spring for yieldingly holding said second lever andwith it said work support in raised position, a pair of clamping blocksfor locking said work support in position, and operative connections between said clamping blocks and said first mentioned lever whereby said blocks are projected and retracted with respect to said worksupport in timed relation to the cycle of operations of the machine.

17. In combination a slidable stem memher, a pair of clamping segments engaging with their straight edges on each side thereof, an inclosing cup member provided with interiorly located wedge surfaces, and means for rotatively actuating said cup member, thereby forcing said segments into clamping engagement with said stem -member through-the engagement of said wedge surfaces against the peripheral portions of said segmentsand for synchronously actuating said stem member relatively thereto.-

18. In combination with a slidable stem member, means for positively raising and lowering the same, a pair of clamping segments sl dably engaging the same with their straight edges, a cup member engaging about said segments, a pair of wedge members interposed between the peripheral portions of said segments and the interior peripheral portion of said cup member, and incapable of relative movement with respect to said cup member, and. means deriving its actuation from the movement of said means for raising and lowering the stem, whereby at a certain point in the cycle of operations of the device said cup member is rotated, thereby forcing said segments into clamping engagement with said stem member through the medium of said wedge members;

"19. In combination with a power shaft, a plvoted lever operatively connected'therer with, an adjustable work support, a second lever operatively connected with said first named lever and with said work support whereby said work support is raised and lowered, a pair of clamping blocks adapted to be forced toward one another into locking engagement said work support at a 'certain point in each cycle of operation of the machine, and means connecting said clamping member with said first named lever whereby the same is thrown into engagement with said-work support at thedesired time. y

20, The combination, with a frame, of a cupped casing member supported thereby in 1 its contained parts, and whereby the casing is thereafter rotated to force said clamping blocks into locking engagement with said work support.

21. In a brush making machine, in combination with a supporting frame, a work support vertically adjustable with respect oted lever by whose movement said work support is raised and lowered, a second lever member by which said clamping blocks are pro ected against and away from said work sungort in timed relation to the cycle of L movement thereof, and actuatlng members whereby the'movement of said lever member is caused in timed relation to one another.

'22. The combination of a frame, a vertically movable stem member, a pair ing blocks between which said stem member slidably engages, a casing provided with internally located Wedge faces adapted to engage the clamping blocks to effect their projection and retraction with respect to said stem member, and an actuating member iior rotating said casing to move said clamping blocks in timedrelation to the movement of said stem member.

23. In combination with a frame member,

' a casing member provided with internally arranged wedge faces pivotally supported thereby, a pair of clamping blocks arranged within said casing in position to be actuated toward and away from one another by the ported apertured casing provided with in'u of clamp-- when saidclamping blocks are projected thereagainst, and ineans deriving actuation from a common source whereby the several parts are actuated in timed relation to one another.

2 in combination with a .pirotall} sup nally arranged cam faces, a stem member shdably engaging through the apertures in ,the casing, a pair of clamping blocks ar ranged within said casing, bctnccn which said stem member passes, means for raising and lowering said stein member with respect to said casin 'and its contained parts and for maintaining it against axial displacemerit, and means for imparting limited rotatire movement to said casing, thereby cans ing the projection of said clamping blooms against said. stem member.

In testimony whereof, I sign this spo'ciii- I cation in the presence of two WIlII'iGSSC'S.

. WILLIAM G. LIEBIG. VVit-nesses: v

Jnrrnnson Tiimmnit, VVILLIAM SWAN. 

